The propensity interpretation of fitness / Susan K. Mills and John H. Beatty -- Functions / Larry Wright -- Functional analysis / Robert Cummins -- The spandrels of San Marco and the Panglossian paradigm : a critique of the adaptationist programme / Stephen Jay Gould and Richard C. Lewontin -- Optimization theory in evolution / John Maynard Smith -- Excerpts from Adaptation and natural selection / George C. Williams -- Levels of selection : an alternative to individualism in biology and the human sciences / David Sloan Wilson -- Typological versus population thinking / Ernst Mayr -- Evolution, population thinking, and essentialism / Elliott Sober
(cont.) A matter of individuality / David L. Hull -- Species concepts : a case for pluralism / Brent D. Mishler and Michael J. Donoghue -- The continuing search for order / Robert R. Sokal -- Phylogenetic systematics / Willi Hennig -- Biological classification : toward a synthesis of opposing methodologies / Ernst Mayr -- Contemporary systematic philosophies / David L. Hull -- The logical basis of phylogenetic analysis / James Farris -- The detection of phylogeny / Joseph Felsenstein -- 1953 and all that : a tale of two sciences / Philip Kitcher -- Why the antireductionist consensus won't survive the case of classical Mendelian genetics / C. Kenneth Waters -- Moral philosophy as applied science / Michael Ruse and Edward O. Wilson -- Four ways of "biologicizing" ethics / Philip Kitcher -- Epistemology from an evolutionary point of view / Michael Bradie -- Models of cultural evolution / Elliott Sober